Un año en la vida de una estación de Bicing

Disponibilidad de bicicletas en Torrent de les Flors (plaça Rovira i Trias) para el año 2012-3.


En teoría esta tabla (rollover filas para número/hora) se actualizará cada 6 minutos con nuevos datos de Citybik.es durante poco más de un año. Sería sencillo poner todas las estaciones y unos gráficos bonitos, pero hoy quedan asuntos importantes de pizza y pelota para resolver.


Google Spreadsheets + Zend broke down after only a few thousand iterations, so I restarted using a text file, which for the period of a year with a 6-minute sampling frequency gave a mean availability of 0 and a 0% probability of finding no bikes at all.

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  1. You don’t mention that if there is one bike left it is usually broken. If you actually go and check I think you’ll find that global availability of at least one functional bike is probably less than 50%.

  2. @ANun: You also can’t take out bikes between 2 and 5, so the relatively high availability then skews the real overall picture.

  3. Haha, that didn’t take very long – the write script using Zend runs out of memory at 3668 rows or around 200kB spreadsheet size

    Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 30720 bytes) in /home/oreneta/ZendGdata/library/Zend/Validate/Hostname/Com.php on line 96

  4. Ha ha, the bastards changed the station ID from 221 to 227. It’ll show up when I do some proper diachronic charting, meanwhile 227 is now the number followed.

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